METHOD OF SWITCHING A SEMICONDUCTOR DEVICE
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United States of America Patent
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Issued Date -
Dec 24, 2015
app pub date -
Feb 7, 2014
filing date -
Feb 13, 2013
priority date (Note) -
Abandoned
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Abstract
There is provided a method of switching on a semiconductor device. The semiconductor device includes gate, collector and emitter terminals. The method includes the steps of: (i) applying, upon receipt of a switch-on signal, a voltage to the gate terminal of the semiconductor device to decrease a collector-emitter voltage of the semiconductor device to a first predetermined voltage plateau level, and maintaining that voltage to the gate terminal of the semiconductor device for a predetermined time period; (ii) after the predetermined time period, controlling the voltage applied to the gate terminal of the semiconductor device to change the collector-emitter voltage at varying ramp-rates until the collector-emitter voltage reaches a predetermined voltage level; and (iii) controlling the voltage applied to the gate terminal of the semiconductor device to maintain the collector-emitter voltage at the predetermined voltage level.
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